Factorise: x^2-4 x-12 - Vidyadip

Question

Factorise:
$x^2-4 x-12$

✓

Answer

$x^2-4 x-12$
$=x^2-6 x+2 x-12$
$\{-12=-6 \times 2,-4=-6+2\}$
$=x(x-6)+2(x-6)$
$=(x-6)(x+2)$

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